Quote:
Originally Posted by Mesalm
It seems evertime I change a filter, first the air filter then now the oil and oil filter the car runs rougher and now will not idle cold and sometimes warm too.
I used seafoam in crankcase before oil change, but I don't belive that cause the problem. I am also now, recently mixing a cocktail of Marvel Mistery oil, Iso Heat, Power Service (white bottle) with fuel fill-up. These are the only changes to the car.
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There seems to be something missing in your thread. Is there anything else unusual you do before changing a filter out? Unlikely that changing an air filter would make a car quit at idle and warm temps afterwards in my opinion. Changing oil and oil filter likewise.